Mary Katherine Williams, PA-C
Physician Assistant · Raleigh, NC
Mary Katherine Williams, PA-C is a physician assistant with a practice address in Raleigh, North Carolina, and NPI 1588959407, issued on Jun 20, 2011. Check the license (North Carolina 0010-02907, as entered in NPPES) with the North Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Katherine Williams
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 0010-02907 NC
Self-reported in NPPES; status is on the state search - Practice location
- 8020 Creedmoor RD, Raleigh, NC 27613
- Phone
- (919) 322-2844
- Enumerated
- Jun 20, 2011
- Record last updated
- Sep 19, 2024
- Fax
- (919) 322-2898
- Medicaid ID
- 1588959407 NC
- Medicare enrollment
- Enrolled (PECOS I20130125000402); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 9,279 in North Carolina → Look up another NPI →
Also registered at 8020 Creedmoor RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Katherine Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich North Carolina board licenses this profession
Search for license 0010-02907Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average physician assistant in 2024
503 Medicare Part D claims for 191 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Prednisone35 claims
- Albuterol Sulfate Hfa31 claims
- Amlodipine Besylate24 claims
- Famotidine16 claims
- Ipratropium Bromide16 claims
- Nystatin15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $18.56
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- American Family Care Fuquay PLLCFuquay Varina, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Katherine Williams among 9,279 physician assistant records in North Carolina
Mary Katherine Williams, PA-C is one of 9,279 physician assistant records with a practice address in North Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 33% of them.
- NPI issued2011 · 33% of these records are older, 65% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2011 · median 2017 among the 6,366 with a school on file
- Record last updated2024 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
724 physician assistant records list a practice address in Raleigh
They are 724 of the 16,309 NPPES records with a practice address in Raleigh, and 9,279 physician assistant records in North Carolina.
All 9,279 in North Carolina → Every provider in Raleigh → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Phuong Batouli, PA-CRaleigh, NC 276131356588073
- Lindsay Bentley, PHYSICIAN ASSISTANTRaleigh, NC 276131154561629
- Kaitlyn Brown, PA-CRaleigh, NC 276131346872348
- Aaron Glover, PA-CRaleigh, NC 276131487043469
- John HubbardRaleigh, NC 276131376166371
- Megan Kain, PA-CRaleigh, NC 276131780153239
- Brooke Lilley, PA-CRaleigh, NC 276131023332020
- Lea LottRaleigh, NC 276131497251714
Common questions
What is Mary Katherine Williams, PA-C's NPI number?
Mary Katherine Williams, PA-C's National Provider Identifier (NPI) is 1588959407, issued on Jun 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mary Katherine Williams, PA-C located?
The NPPES record lists a practice address at 8020 Creedmoor RD, Raleigh, NC, 27613. Phone: (919) 322-2844. Providers update this record themselves, so call before visiting.
How can I verify Mary Katherine Williams, PA-C's license?
NPPES lists North Carolina license number 0010-02907, as entered by the provider. Search the North Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Katherine Williams, PA-C prescribe under Medicare Part D?
In 2024, Mary Katherine Williams, PA-C had 503 Medicare Part D claims for 191 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.